If your double-pane window is foggy or dirty on the inside of the glass, the airtight seal has failed, allowing moisture and dirt inside. Because these windows are sealed vacuum units, the most effective long-term solution is to replace the insulated glass panel (IGU).
Fog between your window panes means the insulated glass seal has failed, trapping moisture and mineral deposits. Because the space is hermetically sealed, you cannot physically wipe the inside glass. The three primary ways to fix it are checking your warranty, hiring a defogging service, or replacing the glass unit.
Double-pane windows typically last 15 to 25 years. However, the lifespan of the glass seal itself averages 10 to 15 years. After this, the seal may fail, causing insulating gases like argon to leak out and condensation to form between the panes.
Hairdryer – Using a hairdryer on the affected area will clear up the condensation quicker but it's only a quick fix and won't actually solve the problem. Ensure you don't have any cracks in your windows before you apply any heat.
Foggy double-pane windows mean the inner seal has failed, allowing moisture to condense between the glass. You cannot wipe this away. The most permanent solution is replacing the insulated glass unit (IGU). Alternatively, a local glass service can defog it, or you can replace the sash yourself.
You cannot clean inside a sealed double-pane window without breaking the vacuum seal. If dirt or moisture is trapped between the panes, the desiccant is saturated and the seal has failed. Your only options are professional glass restoration, replacing the glass unit, or a DIY drilling method.
Double- and triple-pane windows are sealed units filled with insulating gas. That gas prevents heat transfer and helps with efficiency. If fog forms, it means the seal has broken and moisture has entered. This can happen due to impact damage, natural wear, or aging seals.
Condensation happens because rooms get too cold, they fluctuate between cold and hot, and there is excessive moisture from cooking, washing and expiration. The biggest causes are showering, drying clothes on radiators and boiling pans.
Salt is hygroscopic, meaning it naturally attracts and absorbs moisture from the air. When placed next to a cold window pane, it can help reduce the amount of water that collects overnight — particularly in small rooms or on single-glazed windows.
Replace double glazing to benefit from the advancements in double glazing technology over the past 20 years. Today's windows have a U-value of 1.2 W/m²K compared to 2.8 W/m²K of older units. So they're more than twice as good at keeping heat in.
The cheapest time of year to replace windows is during the off-season, which runs from late fall through winter. Demand drops significantly during these months, prompting manufacturers and contractors to offer steep discounts and special promotions to keep their crews busy.
Here's the straight answer: yes, energy-efficient windows do increase home value in most markets. Multiple national remodeling reports consistently show window replacement as a high-ROI project, with homeowners typically recovering around 65–80% of their investment when they sell.
Yes, a mixture of vinegar and Dawn dish soap is highly effective, inexpensive, and a great DIY alternative to commercial window cleaners. The vinegar cuts through grime and prevents water spots, while the Dawn cuts grease and provides the perfect lubrication for a squeegee to glide across the glass.
When condensation between window panes forms, it means the seal on the insulated glass unit (IGU) has failed. Thankfully, the solution is simple — replace just the glass, not the entire window. We recommend contacting your local Glass Doctor for glass replacement.
If you already have double-pane windows, you probably won't see extreme energy bill savings. But the investment can still be worth it. New windows make your house quieter and more comfortable, on top of improving energy efficiency and lowering bills. They're also a big aesthetic improvement.
Resealing double-glazed windows can be helpful if you notice: Condensation on the inside of the glass. Draughts from the window. Visible wear, tear, or gaps in the seal.
In many cases, it is cheaper to replace all windows at once. Full-home projects usually qualify for better per-window pricing because of manufacturing efficiencies, a single installation cycle, and lower labor per unit. You also avoid future price increases and start saving on energy bills sooner.
Window condensation happens when warm, humid air inside your home hits your cold window glass. As the air cools down overnight, it can no longer hold all its moisture, forcing the water to turn into liquid droplets on your glass.
Keep your home adequately heated
Try to keep your home suitably heated. It usually helps to have a low background temperature of at least 15 degrees in all rooms. By doing this you are less likely to have condensation dampness as the warm air holds more moisture than cold.
Rice. Some people say that if you put rice on your window sill, it will reduce and prevent any condensation. How it is claimed to work: Since rice is hygroscopic (a.k.a. a material that absorbs moisture from the air), it's said to help with window condensation.
Foggy double-pane windows mean the inner seal has failed, allowing moisture to condense between the glass. You cannot wipe this away. The most permanent solution is replacing the insulated glass unit (IGU). Alternatively, a local glass service can defog it, or you can replace the sash yourself.
A hazy house in the morning is usually caused by indoor humidity condensing into a light mist, or by airborne particles (like dust or smoke) being trapped overnight. It most commonly happens due to one of the following factors:
Standard glass cleaners like regular Windex do not prevent fogging. While they clean off the oils and grime that moisture clings to, they do not leave behind the protective coating needed to stop condensation from beading into fog.